975990 has 16 divisors (see below), whose sum is σ = 2342448. Its totient is φ = 260256.

The previous prime is 975977. The next prime is 975991. The reversal of 975990 is 99579.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (975991) by changing a digit.

975990 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16237 + ... + 16296.

It is an arithmetic number, because the mean of its divisors is an integer number (146403).

2⁹⁷⁵⁹⁹⁰ is an apocalyptic number.

975990 is an abundant number, since it is smaller than the sum of its proper divisors (1366458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

975990 is a wasteful number, since it uses less digits than its factorization.

975990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32543.

The product of its (nonzero) digits is 25515, while the sum is 39.

The square root of 975990 is about 987.9220617032. The cubic root of 975990 is about 99.1931745000.

The spelling of 975990 in words is "nine hundred seventy-five thousand, nine hundred ninety".